(92) باب مَا قِيلَ فِي أَوْلاَدِ الْمُشْرِكِينَ
Narrated Abu Huraira:
The Prophet (ﷺ) said, "Every child is born with a true faith of Islam (i.e. to worship none but Allah Alone) and his parents convert him to Judaism or Christianity or Magianism, as an animal delivers a perfect baby animal. Do you find it mutilated?"
Reference: Sahih al-Bukhari 1385
In-book reference: Book 23, Hadith 138
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 23, Hadith 467